Project Mu PBF914 B-Force Front Brake Pads for Subaru WRX / BRZ / Scion FR-S

Vehicle Fitment

• 2003-2005 Subaru Impreza WRX (All Trims, AWD)
• 2008 Subaru Impreza WRX (All Trims, AWD)
• 2008-2014 Subaru Impreza WRX (All Trims, AWD)
• 2006-2014 Subaru Impreza (2.5i, 2.5 GT - All Trims, AWD)
• 2003-2010 Subaru Forester (X, XS, XT, XT Limited, XT Premium - All Trims, AWD)
• 2008 Subaru Forester (Sports 2.5X, Sports 2.5XT, AWD)
• 2003-2006 Subaru Baja (Base, Sport, Turbo - AWD)
• 2005-2009 Subaru Legacy GT (All Trims, AWD)
• 2005-2009 Subaru Outback XT (All Trims, AWD)
• 2013-2016 Scion FR-S (Base, RWD)
• 2013-2020 Subaru BRZ (All Trims - Limited, Premium, Series.Blue, Series.HyperBlue, Series.Yellow, tS, RWD)
• 2017-2019 Toyota 86 (All Trims, RWD)

Fitment Notes

• Fits vehicles equipped with the D929 front brake caliper - verify caliper code before ordering
• Does NOT fit 2004-2021 Subaru WRX STI - STI models use a 4-piston Brembo front caliper (see PBF506 for STI fitment)
• Does NOT fit 2015-2021 Subaru WRX - the FA20DIT platform uses a different front caliper application
• Does NOT fit 2021-2024 Toyota GR86 or 2022-2024 Subaru BRZ (ZD8 generation) - these use a different caliper
• Sold as a complete set for the front axle
• Bedding/break-in procedure recommended after installation to achieve full friction performance

Features

• Engineered for street and light track use, delivering strong initial bite and consistent stopping power across a wide operating temperature range
• Super Graphite Metallic / Carbon Ceramic compound provides excellent fade resistance from 0-500°C, suitable for spirited driving and track days
• Smooth, linear friction coefficient of 0.32-0.42 ensures predictable, progressive brake feel without abrupt grab or bite
• Low dust formulation reduces brake dust buildup on wheels compared to OEM and standard replacement pads
• Rotor-friendly compound minimizes rotor wear even under repeated hard stops and track day environments
• Low noise characteristics reduce brake squeal and vibration for a quieter driving experience on the street
• Direct OEM replacement fit - no modifications required for installation on compatible D929 caliper vehicles
• Developed and refined through Project Mu's decades of motorsports experience across NASCAR, D1 Drifting, WTCC, WRC, and Super GT programs

Specifications

• Part Number: PBF914
• Compound: Super Graphite Metallic / Carbon Ceramic
• Position: Front
• Applicable Caliper: D929
• Applicable Rotor Temperature: 0-500°C
• Friction Coefficient: 0.32-0.42
• Noise Rating: Low
• Dust Rating: Medium-Low
• Sold as: Complete Front Set

Included Components

• 1x Set of Project Mu B-Force Front Brake Pads (PBF914) - both left and right pads for the front axle

Product Description

The Project Mu PBF914 B-Force front brake pads are a high-performance street and light track upgrade for a broad range of Subaru and Toyota/Scion platforms sharing the D929 front brake caliper. Engineered by one of Japan's most respected brake specialists, the B-Force compound uses a Super Graphite Metallic / Carbon Ceramic formula that operates effectively across a temperature range of 0-500°C - making these pads equally at home during daily commuting and track day sessions. The 0.32-0.42 friction coefficient delivers confident, linear stopping power without the aggressive initial bite or rotor damage associated with more race-oriented compounds.

Compared to OEM pads, the B-Force compound excels in fade resistance under repeated hard stops, while simultaneously reducing brake dust accumulation and rotor wear - a combination that extends service life for both the pads and the rotors. Noise and vibration are kept to a minimum, making these pads a practical upgrade for daily-driven performance vehicles. Project Mu's motorsports heritage - spanning Super GT, WRC, D1 Drifting, and WTCC - has directly informed the material science behind the B-Force series, providing street drivers with competition-grade braking engineering in a rotor-friendly, streetable package.

These pads are a direct-fit replacement for all vehicles equipped with the D929 front caliper, including the 2003-2005 and 2008-2014 Subaru WRX, 2013-2016 Scion FR-S, 2013-2020 Subaru BRZ, 2017-2019 Toyota 86, and multiple Forester, Legacy, Baja, and Impreza variants. It is critical to verify your vehicle's front caliper type before ordering - these pads do not fit the 4-piston Brembo calipers found on the WRX STI, nor do they fit the 2015-2021 WRX or the current-generation GR86/BRZ (ZD8). Installation requires no modifications and a standard break-in/bedding procedure is recommended to achieve full friction performance from the new compound.